|Publication number||US7625243 B2|
|Application number||US 11/818,100|
|Publication date||Dec 1, 2009|
|Filing date||Jun 13, 2007|
|Priority date||Jun 13, 2007|
|Also published as||CN101409395A, CN101409395B, CN102148448A, CN102148448B, US7946893, US8152569, US20080311801, US20100055980, US20110195601|
|Publication number||11818100, 818100, US 7625243 B2, US 7625243B2, US-B2-7625243, US7625243 B2, US7625243B2|
|Inventors||Kuan-Yu Chen, Chong Yi, James M. Sabo, Joseph Ortega, Gary E. Biddle|
|Original Assignee||Hon Hai Precision Ind. Co., Ltd.|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (7), Referenced by (42), Classifications (8), Legal Events (4)|
|External Links: USPTO, USPTO Assignment, Espacenet|
1. Field of the Invention
The present invention relates to electrical connectors, more particularly to electrical connectors compatible to standard Universal Serial Bus (USB) connectors.
2. Description of Related Art
Recently, personal computers (PC) are used of a variety of techniques for providing input and output. Universal Serial Bus (USB) is a serial bus standard to the PC architecture with a focus on computer telephony interface, consumer and productivity applications. The design of USB is standardized by the USB Implementers Forum (USB-IF), an industry standard body incorporating leading companies from the computer and electronic industries. USB can connect peripherals such as mouse devices, keyboards, PDAs, gamepads and joysticks, scanners, digital cameras, printers, external storage, networking components, etc. For many devices such as scanners and digital cameras, USB has become the standard connection method.
As of 2006, the USB specification was at version 2.0 (with revisions). The USB 2.0 specification was released in April 2000 and was standardized by the USB-IF at the end of 2001. Previous notable releases of the specification were 0.9, 1.0, and 1.1. Equipment conforming to any version of the standard will also work with devices designed to any previous specification (known as: backward compatibility).
USB supports three data rates: 1) A Low Speed rate of up to 1.5 Mbit/s (187.5 KB/s) that is mostly used for Human Interface Devices (HID) such as keyboards, mice, and joysticks; 2) A Full Speed rate of up to 12 Mbit/s (1.5 MB/s). Full Speed was the fastest rate before the USB 2.0 specification and many devices fall back to Full Speed. Full Speed devices divide the USB bandwidth between them in a first-come first-served basis and it is not uncommon to run out of bandwidth with several isochronous devices. All USB Hubs support Full Speed; 3) A Hi-Speed rate of up to 480 Mbit/s (60 MB/s). Though Hi-Speed devices are commonly referred to as “USB 2.0” and advertised as “up to 480 Mbit/s”, not all USB 2.0 devices are Hi-Speed. Hi-Speed devices typically only operate at half of the full theoretical (60 MB/s) data throughput rate. Most Hi-Speed USB devices typically operate at much slower speeds, often about 3 MB/s overall, sometimes up to 10-20 MB/s. A data transmission rate at 20 MB/s is sufficient for some but not all applications. However, under a circumstance transmitting an audio or video file, which is always up to hundreds MB, even to 1 or 2 GB, currently transmission rate of USB is not sufficient. As a consequence, faster serial-bus interfaces are being introduced to address different requirements. PCI Express, at 2.5 GB/s, and SATA, at 1.5 GB/s and 3.0 GB/s, are two examples of High-Speed serial bus interfaces.
From an electrical standpoint, the higher data transfer rates of the non-USB protocols discussed above are highly desirable for certain applications. However, these non-USB protocols are not used as broadly as USB protocols. Many portable devices are equipped with USB connectors other than these non-USB connectors. One important reason is that these non-USB connectors contain a greater number of signal pins than an existing USB connector and are physically larger as well. For example, while the PCI Express is useful for its higher possible data rates, a 26-pin connectors and wider card-like form factor limit the use of Express Cards. For another example, SATA uses two connectors, one 7-pin connector for signals and another 15-pin connector for power. Due to its clumsiness, SATA is more useful for internal storage expansion than for external peripherals.
USB signals typically include power, ground (GND), and serial differential data D+, D−. To facilitate discussion, the four conductive contacts 53 of the USB plug 500 are designated with numeral 531, 532, 533 and 534 in turn as shown in
As discussed above, the existing USB connectors have a small size but low transmission rate, while other non-USB connectors (PCI Express, SATA, et al) have a high transmission rate but large size. Neither of them is desirable to implement modern high-speed, miniaturized electronic devices and peripherals. To provide a kind of connector with a small size and a high transmission rate for portability and high data transmitting efficiency is much desirable. Such kind electrical connectors are disclosed in a U.S. Pat. No. 7,021,971 (hereinafter 971 patent) issued on Apr. 4, 2006. Detailed description about these connectors is made below.
From the FIGS. 4A-6H and detailed description of 971 patent, we can find that the invention material of 971 patent is to extend the length of the plug and receptacle tongue portions of the existing USB connectors and to extend depth of the receiving cavity of the existing USB connectors, thereby to accommodate additional contacts in extended areas as shown in FIGS. 4A-5H of 971 patent; or to provide the additional contacts on a reverse-side of the plug tongue portion and accordingly with regard to receptacle, to provide a lower tongue portion under a top receptacle tongue portion thereby four USB contacts are held on the top tongue portion and additional contacts are accommodated on the lower tongue portion of the receptacle. With contrast with existing USB type-A receptacle, the receptacle with top and lower tongue portion is higher in height than existing USB receptacle.
As shown in FIGS. 4C, 4D, 5C, 5D and 6C, 6D of the 971 patent, number of the additional contacts is eight. The eight additional contacts plus the four USB contacts are used collectively or in-collectively for PCI-Express, SATA or IEEE 1394 protocol as required. To make the extended-USB plug and receptacle capable of transmitting PCI-Express or SATA or IEEE 1394 signals is the main object of the 971 patent. To achieve this object, at least eight contacts need to be added. Adding eight contacts in existing USB connector is not easy. May be, only embodiments shown in 971 patent are viable options to add so many contacts. As fully discussed above, the receptacle equipped with two tongue portions or plug and receptacle both with a longer length are also clumsiness. That is not very perfect from a portable and small size standpoint.
An extension to USB connectors include an extension to USB plug and an extension to USB receptacle. The extension to USB plug comprises an elongate insulative plug tongue portion extending in a front-to-rear direction and defining a supporting surface, and a plurality of contacts held in the supporting surface. The plurality of contacts comprise four conductive plug contacts and a plurality of additional contacts. The four plug conductive contacts consist of a power contact, a ground contact, a − data contact and a + data contact. An arrangement of the four plug conductive contacts is compatible to a standard USB receptacle. The plurality of additional contacts comprise at least one pair of differential plug contacts for transferring/receiving high-speed signals. Each of the four plug conductive contacts and each of the additional contacts comprise a nonelastic contact portion and an elastic contact portion, respectively. The elastic contact portion of each differential contact is located behind the nonelastic contact portion of each conductive contact along the front-to-rear direction. The plurality of additional contacts are adapted for non-USB protocol.
The extension to USB receptacle comprises an elongate insulative receptacle tongue portion extending in a front-to-rear direction and defining a supporting surface, and a plurality of contacts held in the supporting surface. The plurality of contacts comprise four receptacle conductive contacts and a plurality of additional contacts. The four receptacle conductive contacts consist of a power contact, a ground contact, a − data contact and a + data contact. An arrangement of the four receptacle conductive contacts is compatible to a standard USB plug. The plurality of additional contacts comprise at least one pair of differential receptacle contacts for transferring/receiving high-speed signals corresponding to said differential plug contacts of the extension to USB plug. Each of the four receptacle conductive contacts and each of the additional contacts comprise an elastic contact portion and a nonelastic contact portion, respectively. The nonelastic contact portion of each differential contact is located forward the elastic contact portion of each conductive contact along the front-to-rear direction. The plurality of additional contacts are adapted for non-USB protocol. With such arrangement, the extension to USB connectors are with ease structures and are portable. Furthermore, as the conductive contacts are used for USB protocol and the additional contacts are used for non-USB protocol, now, the extension to USB plug can be applied in electronic devices either supporting the USB protocol or the non-USB protocol.
The foregoing has outlined rather broadly the features and technical advantages of the present invention in order that the detailed description of the invention that follows may be better understood. Additional features and advantages of the invention will be described hereinafter which form the subject of the claims of the invention.
For a more complete understanding of the present invention, and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which:
In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention. However, it will be obvious to those skilled in the art that the present invention may be practiced without such specific details. In other instances, well-known circuits have been shown in block diagram form in order not to obscure the present invention in unnecessary detail. For the most part, details concerning timing considerations and the like have been omitted inasmuch as such details are not necessary to obtain a complete understanding of the present invention and are within the skills of persons of ordinary skill in the relevant art.
Reference will be made to the drawing figures to describe the present invention in detail, wherein depicted elements are not necessarily shown to scale and wherein like or similar elements are designated by same or similar reference numeral through the several views and same or similar terminology.
Within the following description, a standard USB connector, receptacle, plug, and signaling all refer to the USB architecture described within the Universal Serial Bus Specification, 2.0 Final Draft Revision, Copyright December, 2002, which is hereby incorporated by reference herein. USB is a cable bus that supports data exchange between a host and a wide range of simultaneously accessible peripherals. The bus allows peripherals to be attached, configured, used, and detached while the host and other peripherals are in operation. This is referred to as hot plugged.
In this embodiment of the present invention, the plug contacts 13 include four plug conductive contacts designated with numeral 131, 132, 133 and 134 and a plurality of additional plug contacts 137. The passageways 123 for receiving the four conductive contacts 131, 132, 133 and 134 are recessed from the front end 120 of the plug tongue portion 12 and extend backwardly along the front-to-rear direction. The passageways 123 for receiving the additional plug contacts 137 are located behind the passageways 123 for receiving the four plug conductive contacts 131, 132, 133 and 134 along the front-to-rear direction. The four plug conductive contacts 131, 132, 133 and 134 are inserted into corresponding passageways 123 from the front end 120 of the plug tongue portion 12 while the additional plug contacts 137 are inserted into corresponding passageways 123 from the rear end 112 of the plug base portion 11. The plurality of additional plug contacts 137 are located behind the conductive contacts 131, 132, 133 and 134 without disturbing any one of the conductive contacts 131, 132, 133 and 134.
As shown in
As shown in
The extension to USB plug 100 is compatible to existing standard USB receptacle, such as the standard USB receptacle 600 shown in
In the first embodiment, the plug contacts 13 are all formed of a metal sheet and separated form each other. It is also to be understood that, in other embodiments, the plug conductive contacts 131, 132, 133 and 134 can be conductive pads formed on a printed circuit board which is supported on the supporting surface 121 of the plug tongue portion 12. These two options to make contacts are both viable in current industry.
The receptacle housing 20 includes the receptacle base portion 21, a pair of the receptacle tongue portions 22 and the supporting plate 25. The receptacle base portion 21, the receptacle tongue portions 22 and the supporting plate 25 are integrally injecting molded as one piece of the receptacle housing 20. The supporting plate 25 is positioned between the pair of receptacle tongue portions 22. The receptacle tongue portion 22 defines a supporting surface 221 on a bottom level and a top surface 222 opposite to the supporting surface 221. The receptacle base portion 21 and tongue portion 22 define a front end 210, 220 and a rear end 212, 226 opposite to their front end 210, 220, respectively. The receptacle tongue portions 22 and the supporting plate 25 all extend forwardly in the front-to-rear direction from the front end 210 of the receptacle base portion 21. In other words, the rear end 226 of the receptacle tongue portion 22 connects with the front end 210 of the receptacle base portion 21. The receptacle base portion 21 forms a plurality of projections 213 on a pair of sidewalls 211 thereof and near the rear end 212. On a bottom side 215 of the receptacle base portion 21, a plurality of standoffs 216 protruding outwardly for standing on a board (not shown) that the extension to USB receptacle 200 is mounted on. A pair of depressed portions 214 are formed on the sidewalls 211 of the receptacle base portion 21 for engagement with corresponding projections formed on the receptacle metal shell 24. A plurality of receptacle contact receiving passageways 223 are recessed in the supporting surface 221 of the receptacle tongue portion 22 to receive the receptacle contacts 23. The receptacle contact receiving passageways 223 all extend from the receptacle tongue portion 22 towards the receptacle base portion 21. The receptacle base portion 21 defines a rear room 203 for receiving part of the receptacle contacts 23.
As shown in
As shown in
As shown in
The extension to USB receptacle 200 is compatible to existing standard USB plug, such as the standard USB plug 500 shown in
The another metal shell 29 includes a front wall 290, a pair of sidewall 292 extending rearward from right and left edges of the front wall 290, and a pair of top and bottom walls 294 extending rearwardly from top and bottom edges of the front wall 290. The front wall 292 forms a pair of spring arms 291 stamped outwardly therefrom. Each of the top and bottom walls 294 forms a pair of sparing arms 293 stamped upwardly therefrom and a pair of engaging portions 295 for being pressed into the receptacle base portion 21. The another metal shell 29 is mounted to the supporting plate 25 from a front side of the receptacle housing 20. A top receiving cavity 201 of the top receptacle is formed between the supporting surface 221 of the top receptacle and the top wall 294 of the another metal shell 29. The elastic contact portions 26 and nonelastic contact portions 2371 are all exposed to the receiving cavities 201, 202 for mating with corresponding contact portions of a complementary connector. An arrangement of the receiving cavities 201,202 and the receptacle tongue portion 22 are also compatible with what of standard USB plug 500.
The rear metal shell 28 comprises a body 281 and a pair of holding arms 282 extending from an upper edge of the body 281. The holding arms 282 are received in the through holes 247 of the receptacle metal shell 24 so that the rear metal shell 28 can be combined with the receptacle metal shell 24.
As fully described above, the extension to USB plug 100 and the extension to USB receptacle 200 both are compatible to the standard USB connector. In application, the extension to USB plug 100 is capable of mating with the standard USB receptacle 600 or the extension to USB receptacle 200. The extension to USB receptacle 200 is capable of mating with the standard USB receptacle 600 or the extension to USB receptacle 200 as well.
A second embodiment of the present invention is disclosed in
With contrast to the standard USB connector (standard USB plug and standard USB receptacle), the additional two pairs of differential contacts 138, 238 in the extension to USB plug 100 and the extension to USB receptacle 200 provide a high transfer data for an electrical connector system with the extension to the extension to USB plug 100 and the extension to USB receptacle 200 in operation. Take the extension to USB plug 100 for example, the arrangement of power contact 131, the − data contact 132, the + data contact 133 and the ground contact 134 is compatible to what of a standard USB receptacle. This means that the extension to USB plug 100 can be applied in any field that the standard USB plug is applied. The pair of differential plug contacts 137 are located behind the plug conductive contacts 131, 132, 133 and 134. With such arrangement, the extension to USB plug 100 is with an ease structure and is portable. Furthermore, as the two pairs of differential plug contacts 137 are used for a non-USB protocol, now, the extension to USB plug also can applied in other electronic device supporting the non-USB protocol.
In the first and second embodiments, the number of the additional plug contacts 137 is five which consists of two pairs of differential plug contacts 138 and a grounding plug contact 139 disposed between each pair of the differential plug contacts 138 as best shown in
It is to be understood, however, that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed. For example, the tongue portion is extended in its length or is arranged on a reverse side thereof opposite to the supporting side with other contacts but still holding the contacts with an arrangement indicated by the broad general meaning of the terms in which the appended claims are expressed.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US5564949 *||Jan 5, 1995||Oct 15, 1996||Thomas & Betts Corporation||Shielded compact data connector|
|US6238244 *||May 12, 2000||May 29, 2001||Advanced Connecteck Inc.||Shielded electrical connector with superposed terminals|
|US6270379 *||Nov 29, 1999||Aug 7, 2001||Hon Hai Precision Ind. Co., Ltd.||Connector with securely retained contacts|
|US7104848 *||Apr 28, 2004||Sep 12, 2006||Super Talent Electronics, Inc.||Extended USB protocol plug and receptacle for implementing multi-mode communication|
|US7128617 *||Dec 16, 2004||Oct 31, 2006||Advanced Connection Technology Inc.||Electrical socket assembly and plug connector coupled thereto|
|US7232346 *||Jun 30, 2005||Jun 19, 2007||Hon Hai Precision Ind. Co., Ltd.||Universal serial bus connector with additional signal contacts|
|US7422488 *||Nov 2, 2007||Sep 9, 2008||Hon Hai Precision Ind. Co., Ltd.||Extension to electrical connector with improved contact arrangement and method of assembling the same|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US7833065 *||Oct 28, 2008||Nov 16, 2010||Hon Hai Precision Ind. Co., Ltd.||Triple mating configurations of connector|
|US7837510 *||Jul 23, 2009||Nov 23, 2010||Alltop Electronics (Suzhou) Co., Ltd||Electrical connector with improved contact arrangement|
|US7878860 *||Apr 29, 2010||Feb 1, 2011||Winchester Electronics Corporation||Modular connector system|
|US7918685||Apr 1, 2010||Apr 5, 2011||CableJive LLC||Cable assembly for mobile media devices|
|US7922525 *||Jul 22, 2010||Apr 12, 2011||Tyco Electronics (Shanghai) Co., Ltd.||USB electrical connector|
|US7963809 *||Sep 30, 2008||Jun 21, 2011||Apple Inc.||Microdvi connector|
|US8152568 *||Sep 15, 2010||Apr 10, 2012||Hon Hai Precision Ind. Co., Ltd.||Cable assembly with new interface|
|US8157599 *||Sep 23, 2011||Apr 17, 2012||Molex Incorporated||Electrical connector|
|US8262411 *||May 19, 2009||Sep 11, 2012||Hosiden Corporation||Electrical connector having a crosstalk prevention member|
|US8262416 *||Sep 17, 2010||Sep 11, 2012||Super Talent Electronics, Inc.||Dual-personality extended USB plugs and receptacles using with PCBA and cable assembly|
|US8444423||Aug 14, 2012||May 21, 2013||Super Talent Electronics, Inc.||Dual-personality extended USB plugs and receptacles using with PCBA and cable assembly|
|US8684752||Oct 31, 2012||Apr 1, 2014||Ant Precision Industry Co., Ltd.||Electrical connector and electronic apparatus using the same|
|US8721361 *||Apr 19, 2011||May 13, 2014||Hon Hai Precision Industry Co., Ltd.||Low profile cable connector assembly|
|US8740652||Nov 2, 2012||Jun 3, 2014||Ant Precision Industry Co., Ltd.||Receptacle connector and assembling method thereof|
|US8747147||Oct 25, 2012||Jun 10, 2014||Hon Hai Precision Industry Co., Ltd.||Electrical connector with detect pins|
|US8801470||Oct 31, 2012||Aug 12, 2014||Ant Precision Industry Co., Ltd||Electrical connector and assembling method thereof|
|US8851931 *||Oct 27, 2012||Oct 7, 2014||Luxshare Precision Industry Co., Ltd.||Electrical connector with soldering sections of contacts exposed on a single side|
|US8882515 *||Apr 27, 2012||Nov 11, 2014||Tyco Electronics (Shanghai) Co., Ltd.||Plug connector and connector assembly|
|US8936493 *||May 28, 2013||Jan 20, 2015||Hon Hai Precision Industry Co., Ltd.||Electrical connector with spacer|
|US9077096 *||Jun 10, 2012||Jul 7, 2015||Apple Inc.||Connector receptacle shell that forms a ground contact|
|US9136631||Jun 7, 2013||Sep 15, 2015||Japan Aviation Electronics Industry, Limited||Connector and forming method thereof|
|US9184545 *||Jan 30, 2014||Nov 10, 2015||Ting-Chi CHEN||Combination USB connector|
|US9214765 *||May 27, 2014||Dec 15, 2015||Hon Hai Precision Industry Co., Ltd.||Electrical connector with metal plate|
|US9318856 *||Feb 17, 2015||Apr 19, 2016||Advanced-Connectek Inc.||Electrical receptacle connector and electrical plug connector|
|US9461429 *||Dec 28, 2014||Oct 4, 2016||Foxconn Interconnect Technology Limited||Electrical connector assembly having extra signal contact|
|US20090111330 *||Oct 28, 2008||Apr 30, 2009||Hon Hai Precision Ind. Co., Ltd.||Triple mating configurations of connector|
|US20090186527 *||Sep 30, 2008||Jul 23, 2009||Apple Inc.||Microdvi connector|
|US20100297884 *||Jul 23, 2009||Nov 25, 2010||Alltop Electronics (Suzhou) Co., Ltd.||Electrical connector with improved contact arrangement|
|US20110003514 *||Sep 17, 2010||Jan 6, 2011||Super Talent Electronics, Inc.||Dual-personality extended usb plugs and receptacles using with pcba and cable assembly|
|US20110021068 *||Jul 22, 2010||Jan 27, 2011||Tyco Electronics (Shanghai) Co. Ltd.||Usb electrical connector|
|US20110065328 *||Sep 15, 2010||Mar 17, 2011||Hon Hai Precision Ind. Co., Ltd.||Cable assembly with new interface|
|US20110151716 *||May 19, 2009||Jun 23, 2011||Hosiden Corporation||Electrical connector|
|US20120276777 *||Apr 27, 2012||Nov 1, 2012||Biaobing Lv||Plug Connector and Connector Assembly|
|US20130115822 *||Oct 27, 2012||May 9, 2013||Shenzhen Luxshare Precision Industry Co., Ltd.||Electrical Connector with Soldering Sections of Contacts Exposed on a Single Side|
|US20130288520 *||Jun 10, 2012||Oct 31, 2013||Apple Inc.||Usb3 connector|
|US20130288537 *||Apr 26, 2012||Oct 31, 2013||Apple Inc.||Usb3 connector|
|US20130316590 *||May 28, 2013||Nov 28, 2013||Hon Hai Precision Industry Co., Ltd.||Electrical connector with spacer|
|US20140357122 *||May 27, 2014||Dec 4, 2014||Hon Hai Precision Industry Co., Ltd.||Electrical connector with metal plate|
|US20150188262 *||Dec 28, 2014||Jul 2, 2015||Foxconn Interconnect Technology Limited||Electrical connector assembly having extra signal contact|
|US20150303629 *||Feb 17, 2015||Oct 22, 2015||Advanced-Connectek Inc||Electrical receptacle connector, electrical plug connector and electrical connector assembly|
|US20170077632 *||Sep 12, 2016||Mar 16, 2017||Foxconn Interconnect Technology Limited||Electrical connector|
|US20170077660 *||Sep 15, 2015||Mar 16, 2017||Htc Corporation||Plug connector and eletronic assembly|
|U.S. Classification||439/660, 439/607.23, 439/924.1, 439/541.5, 439/607.01|
|Jun 13, 2007||AS||Assignment|
Owner name: HON HAI PRECISION IND, TAIWAN
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CHEN, KUAN-YU;YI, CHONG;SABO, JAMES M.;AND OTHERS;REEL/FRAME:019479/0330;SIGNING DATES FROM 20070612 TO 20070613
|Jul 12, 2013||REMI||Maintenance fee reminder mailed|
|Dec 1, 2013||LAPS||Lapse for failure to pay maintenance fees|
|Jan 21, 2014||FP||Expired due to failure to pay maintenance fee|
Effective date: 20131201